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Revision 7ab96ca42be6ce12b7bf98088d5d154f8f15be59 authored by Morten Stenshorne on 05 April 2018, 06:52:57 UTC, committed by Chromium WPT Sync on 05 April 2018, 06:52:57 UTC 
Out-of-flow descendants may still be part of the flow thread.
 
When changing a layout object from in-flow to out-of-flow positioned, we
used to just remove it from the flow thread, risking that there'd no
longer be a column set to associate it with. However, an out-of-flow
positioned descendant may be contained by something that's inside the
flow thread, e.g. if the containing block of an absolutely positioned
object is a relatively positioned object, and that relatively positioned
object is contained by the flow thread.

Since it's hard to detect what the new containing block of an object is
going to be before it has actually gone out of flow, we'll still remove
it from the flow thread, but we'll now detect that we need to re-insert
it when computed style has updated.

Bug: 827424
Change-Id: I413348b0d3ecd0c4b5051e6e9d2a4526863bef60
Reviewed-on: https://chromium-review.googlesource.com/995439
Reviewed-by: Emil A Eklund <eae@chromium.org>
Commit-Queue: Morten Stenshorne <mstensho@chromium.org>
Cr-Commit-Position: refs/heads/master@{#548354}
1 parent 54f844c
Raw File
MediaStreamTrack-init.https.html 
<!doctype html>
<html>
<head>
<title>getUserMedia({video:true}) creates a stream with a properly initialized video track</title>
<link rel="author" title="Dominique Hazael-Massieux" href="mailto:dom@w3.org"/>
<link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#idl-def-MediaStreamTrack">
<link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#life-cycle-and-media-flow">
<link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#widl-MediaStreamTrack-kind">
<link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#widl-MediaStreamTrack-enabled">
<link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#widl-MediaStreamTrack-readyState">
</head>
<body>
<p class="instructions">When prompted, accept to share your video stream.</p>
<h1 class="instructions">Description</h1>
<p class="instructions">This test checks that the video track of MediaStream
object returned by the success callback in getUserMedia is correctly initialized.</p>

<div id='log'></div>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script>
promise_test(() => {
  return navigator.mediaDevices.getUserMedia({video: true})
    .then(stream => {
      var videoTracks = stream.getVideoTracks();
      assert_equals(videoTracks.length, 1, "There is exactly one video track in the media stream");
      track = videoTracks[0];
      assert_equals(track.readyState, "live", "The track object is in live state");
      assert_equals(track.kind, "video", "The track object is of video kind");
      // Not clear that this is required by the spec,
      // see https://www.w3.org/Bugs/Public/show_bug.cgi?id=22212
      assert_true(track.enabled, "The track object is enabed");
    });
});
</script>
</body>
</html>
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